Improvement in cases for dental instruments



3.1 BROWN.

CASES FOR DENTAL INSTRUMENTS.

No.186,7 9 Patented Jan.30,1 87'7.

WITNESSES:

N-PETERS. FHOTO-LITHOGRAPHER. WASHINGTON. D C.

UNITED STATES PATENT OFFICE.

E. PARMLY BROWN, OF FLUSHING, NEW YORK.

IMPROVEMENT-IN CASES FOR DENTAL INSTRUMENTS.

Specification forming part of Letters Patent No. 186,793, dated January30,1877; application filed April 3, 1876.

To all whom it may concern:

Be it known that I, E. PARMLY BROWN, of Flushing, State of New 'York,have invented a Dental (Jase, of which the following is a specification:

The object of my invention is to supply a want which has long been feltin the oflices of dentists, of a receptacle for their instru ments,which shall be easily adjusted and placed in a position convenient tothe hand of the operator, and shall be capable of being tightly closed,so as to exclude dust and dampness when not in use, and which, at thesame time, is capable of being made ornamental.

In the accompanying drawing, Figure 1, representing a horizontal sectionat X Y, shows the plan of the case, which is hexagonal. Fig. 2 is avertical section through the center of the case, dividing itsymmetrically, and shows it mounted, by means of a pivot-joint, A, andpedestal B, on v a portion of a table-top, C. One or more drawers areplaced under the shelf E, in the space D. G is the shell or outer case,(shown raised up a short distance in order better to show theconstruction and working of the device.) This shell is capable of beingraised up, so as to expose to view the contents of the shelves E and F,and is counterbalanced at any points by the weight H, which plays up anddown inside the center piece. The weight is attached to the shell bymeans of three cords playing over pulleys, one of which is shown at K.The lower edge of the molding L is beveled, so as to fit the upper edgeM of the drawer-front, so that looking down the shell also looks thedrawers.

I am aware that cases for various purposes, mounted by means of pivotsor shanks, so as to be capable of revolving, have been made before,andIdo not claim that device as a novelty. Iam also aware that windowshave been made,

'both in houses and cases and cabinets, for

various specific purposes, which are capable of being raised andbalanced by means of weights, cords, and pulleys.

What I claim as my invention is- The combination, in a dental case, of asingle weight playing up and down inside a hollow central shaft,balanced by means of three cords, arranged'to play over pulleys orequivalent supports, with a movable outer shell, which is capable ofbeing raised and lowered at will, all arranged substantially as and forthe purposes described.

E. PARMLY BROWN.

Witnesses:

H. E. BLAKE, P. L. HULL.

